Process of making an adhesive from waste sulfite liquor.



PEGCESS OF MAKING ADEIESIVE FROM W 13TH ma ma 1% nrawing.

To 01/, uni/1m if m 03 concern:

Be it known thni 1', JUDSOX A. Di: QEW, of the cisy of Iii'nniren], inthe Province of Quebec and Dominion of Cnznmin have in vented certainnew and useful Impmvemeats in Processes of Making an Adhesive from WasteSnlfiie Liquor, mwhich the 'fnilim'ing a full, clear, and exactdescriptinn.

This inventian relates to the prorluci obtained frnm the conceni'z'atinnof waste sulfibe liquor and magnesia.

Theprimary object of my invention is in farm a cementing consisting in601% centrating waste sui'fite liqlmr in the ence of magnesium (mid andadding there to magnesium chim'id to form magnesium nxychlnriil.

Various mathmis imve been nsmi in Far-eating Waste suifiie iignm, and avariety of pmciucts have been prepared having ciiemicnl (.iecmngm itinnsmsni'iing fmm the math miss empiuynd and the maiefisiimsed. The presan;ffifiCiZi-Efl in the mmie by those uiiiizing this maierini is "wevaporate the was-tn suiiiie liquor in wac-uo, either while "in &5:

acid C(mfiifififl or after it has been nan tmlizeii with lime 01' min.ii hm empamtnci in the acidmnfiiiiion, the riecompositinn takes piaaewiih th s iiberniion' of free snlfnrrms acid and suifiie 0i lime. Whenempemized with an QECGSS of alkali decom positinns place wiicii mcombimiiion of ihe 1112M; 2 pm at wih the aiimii. Fm instance, mnmi.seems in cumhine in aimnsi. any proper in when adkled in exsesr, andfimiiy viii farm insoiuioie precinct.

My invenion crmsisafis in iihe prodnciinn of a materiai in whiskam'eal-r base in 1s use to nenti'aiizn W153i fiilZS B organic maiemais,'Wiilfii'i barn-2 viii mi; mrm fla insoiubie am unsaiisfzwtory prminzisn. tamed by means at" causzc 2mm n1 sem According in pz'z'icafes, ier-@123 Min (11 wasie suiiii e ingunr 'Wliii'i nmii m. i in (EXCESS andconceniraiie the mates. wmu-a in pznsance of $3115 (i-XCQFf-I mnginasm.The actmn m? an smaii Humid si' in -e n that might as preseni; UP. themagnesia; i2; prevented by burning the magnngiiie lllflilii M O isformed iem'in the cairium carbor: I l A: mite unburne The waste Ziqnm501' this urmse 1S miembi 1n when powdered mn iitinn.

SULFITE LIQUQR.

Application iiiefi Fcbtnary 1?, 1913, Serial Ho 48,589.

large quantities of magnesia are fliYQU. combined with it, menlting fromthe use magnesia as a base in time manufacture si'flfite puip.

The pmduct nbtainevi by cancen'i'miin this material in the presence of:m mm mngmhinm maid has iiii'i'ermi: prnpe than anything; heretnfnreproduced. tfiin riecompusifinns take piace Ce? during the concentrationbut this to imprm'n 21w pimhzci and cannot go snfiicienii far iii takesplace in time pi'esem'e of (:nnr-enii'utwi wast-e sniine izqnnz'prepared by 1115; pl'mjcfii when iiiepi'niiuct is aiimi'nzi in irfl.

ii'iin ih'c mm still in snsps-nsinn the niixiinm m'npm preferably in :iTsar-mam pan. and 55min? evaporation maggnmimn (:iiimid M55? added insniiirient quantity in renvt Hie;-

"a g5? in snspvns 'm. in inn-m Tiiigp f) fli. The prmim-t is removedfrom ihe pen in a (:nmrv'snirzzfieri (:muiiiinn :zmi on drying n" act as:1 Mntiw n2 im ia'iening agent i in; special prupsries as tiw wrsnit ofthe chemica! actions 7 v Lia zims e'ieszc'z'iiied em M nesinm ciiim 11fa-am ZQEg'HQFHHT! nrqxchiomd. 2. Tile pz'ncess making a r-emenimg acnnsisiing; in noi'icainmniingg Waste smut? liquor in the presence 2mPFU'NESS mi in; nesmm mm and adding therein minim quatniitias magnesmmchirmd aquamlent molecular proportions to the amount of magnesiaremaining in excess to form magnesium oxychlorid.

3. The process of making a cementing agent consisting in treatingconcentrated .waste sulfite liquor with oxid of magnesia in ex cess andconcentrating the material in mezzo in the presence of thls excessmagnesia and adding thereto magnesium chlorid in equivof magnesiaren'iaining in excess to form magnesium oxychlorid.

In Witness whereof I have hereunto set my hand in the presence of twowitnesses. JL'DSON A. DE CEW.

Witnesses:

STUART R. W. ALLEX, G. M. Momsmnn.

